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Old 07-18-2012, 09:52 AM
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JL 6W0-4 in front doors...

Hi all! a while back i added a loc,amp and a 10" sub to the rear of my wk, but i've been doing and will be doing more traveling,so I want to free up the space. I had some old (age wise) but very little used JL audio 6w0-4's in a mj project just sitting there, so i decided to try them.

After work I put one in,but i need some sleep before doing the 2nd (work nights) Anyway since they are only rated for 75watts, I dont think there should be a problem powering them, but with just one in at the moment, it is lacking BIG TIME!! to hear it i have to crank the bass and volume up way more then normal,and the dash (same side) sounds terrible i dont see how it could be from only having the 1 side in so far, but maybe I pulled the wires off my sub,but not the power from it,but dont think thats doing it..

I dont get it, in my MJ it has a very basic headunit and thats all (no amp) but it sounded real good any ideas?

thanks in advance
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Old 07-18-2012, 02:37 PM
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Re: JL 6W0-4 in front doors...

RMS Power Range (Watts) 40-150
Peak Power Handling (Watts) 300

That's from Crutchfield.

What are you powering them with?
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Old 07-18-2012, 04:25 PM
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Re: JL 6W0-4 in front doors...

I had them just off the head unit in the mj, so just did the same in the wk,well Stock BA amp.
Aside from the pita of wiring I could use the amp from my sub -little 600w sony X-plode, would there be a problem using the stock wiring instead of running new to the doors?
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Old 07-19-2012, 12:42 AM
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Re: JL 6W0-4 in front doors...

Been searching a bit and have a question... Is it a problem that these JL's are 4ohm? can i still use them or do i need to change anything?
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Old 07-19-2012, 09:12 AM
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Re: JL 6W0-4 in front doors...

Quote:
Originally Posted by 4.whoa View Post
Been searching a bit and have a question... Is it a problem that these JL's are 4ohm? can i still use them or do i need to change anything?
4ohm is just going to depend on how you wire from the amp itself. Check your amp install guide for the correct 4ohm setup with your amount of subs.
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Old 07-19-2012, 09:35 AM
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Re: JL 6W0-4 in front doors...

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Originally Posted by brentwoodkris View Post
4ohm is just going to depend on how you wire from the amp itself. Check your amp install guide for the correct 4ohm setup with your amount of subs.
Sorry, i meant could i use them without the amp somehow ?
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Old 07-19-2012, 09:50 AM
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Re: JL 6W0-4 in front doors...

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Originally Posted by 4.whoa View Post
Sorry, i meant could i use them without the amp somehow ?
I don't think that the stock headunit in the WK can push enough wattage to your subs to drive them. You'll almost certainly need the help of an amp.

Even if you had an aftermarket headunit, I'd doubt that the pre-amp on a higher line headunit would drive those subs. And even if it did, they would sound like crap. (Typical MOSFET output for pre-amps is like 22w RMS / 50w MAX for higher line products). You'll want to find as close to 40w RMS [minimum] as possible to drive those subs.

As for the stock unit, I doubt it pushes anywhere near to even 22w RMS...but I'd have to look that up on WK Jeeps...

Looks like the BA amp specs say it pushes around 40w RMS...but I have my doubts. I would never use that amp to push a sub, too much noise/distortion if I had to guess.
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Old 07-19-2012, 11:01 AM
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Re: JL 6W0-4 in front doors...

I was trying to use them as an upgrade to the doors, that would be enough to pull the sub from the rear.I wasnt running them as subs per say before. the place i got them from said they used them as stock speaker upgrades. I read that you can run a 4ohm resistor to make the speakers 2ohm.... is that a good/safe idea?
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Old 07-19-2012, 11:08 AM
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Re: JL 6W0-4 in front doors...

I guess I would just never use a sub for a rear speaker upgrade...different frequency responses, etc, so basically all you should hear is bass from the rear speakers now? If I were a passenger in the rear, I'd be pissed LOL.
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Old 07-19-2012, 11:18 AM
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Re: JL 6W0-4 in front doors...

no no, for the front doors.
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Old 07-19-2012, 11:21 AM
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Re: JL 6W0-4 in front doors...

Oh sheesh, maybe I should learn to read. Yeah for the fronts (since the stock BA amp is wired for lows only) that might be a good idea. I still doubt there is enough power from the stock amp though to really PUSH that sub. You'll need some real amped power methinks.

Also, wondering how that sub will sound without a retrofitted box/enclosure/sealing back in the door. Report back when you get it fixed.
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Old 07-19-2012, 11:30 AM
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Re: JL 6W0-4 in front doors...

do you think the resistor would be more help or hinderence? i've never done that before.
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